2FA for Apple ID is available, do it now! (or don’t, see within)

If you are following the instructions, but not seeing 2FA available in your iCloud security settings, you probably have two-step verification already enabled.

In order to configure 2FA, you will have to disable two-step verification from one of your devices. This will require you to provide some inane ‘security question’ answers, but don’t worry – you won’t use them a single time.

One other note – if you’re signing into a MacOS X device with your iCloud credential, that goes away as well. You will be requiredto set a new local password that will be used to gain access if you cannot access your 2FA device(s). This may be a challenge for centrally managed environments, and could violate one of more of your internal policies. So please ask your IT department before doing this on a company-owned or managed device.